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    <title>Document</title>
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    <script>
        let arr=[5,6,20,7,10,15,100]
        let num=0
        function odd(a){
            for(let i=0;i<a.length;i++){
                if(a[i]%2===0) num+=a[i]
            }
            return num
        }
       let num1= odd(arr)
       console.log(num1);
    </script>
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